These triplets come from the planet Shinar. The average lifespan of the beings on Shinar is 200 years, extremely long compared to that of earthlings. However, even after reaching adulthood, they remain quite small. Using telepathy, they don't need to speak to communicate. Dai, San, and Gen have incredible teamwork skills and an amazing ability to operate their machine as one. Dai takes care of handling, San handles navigation, and Gen handles acceleration and braking.